APC: APC has several very different meanings in medicine. See each of the following separate entries: 1. APC (gene). 2. APC (immunology). 3. APC (medication). Reviewed on 12/21/2018 Health Solutions From Our Sponsors Clinical Trial Q&A Alternative Pain Relief Penis Curved When Erect How Immunotherapy Fights Cancer Overcoming Breast Cancer Need Help Quitting Smoking?